Max Shutter speed
Panasonic LX100 II can shoot continuously at max speed of
11.0 fps and has max shutter speed of
1/4000 sec. LX100 II also has an electronic shutter which can shoot silently at max speed of
1/16000s. One thing to keep in mind is that electronic shutter may cause rolling shutter / jello effects, and also banding issues under artificial light on your images.
Flash
Unfortunately LX100 II doesn't have a built-in flash but it has a flash shoe for mounting external flashes.
Focusing
Panasonic LX100 II features a Contrast Detection autofocusing system. The AF system has 49 points to choose from. Panasonic LX100 II also features
Face detection AF where it intelligently detects the faces in the frame and locks the focus automatically.
Focus Stacking
Macro shooters will love Panasonic LX100 II's Focus Stacking feature. In this mode, LX100 II automatically composites multiple shots taken at different focal positions using focus bracketing to create a single image with maximum depth of field.
Post Focus
Panasonic LX100 II has a special Post Focus mode which uses its 4K video and focus bracketing features together to shoot and stack a burst of images into a single image which you can change the focus point on the LCD screen after it is taken.